You should change your toothbrush every three to four months. This timing is recommended because toothbrush bristles wear out and become less effective at cleaning teeth, and old toothbrushes can harbor bacteria that may contribute to oral infections or illnesses
. Additionally, you should replace your toothbrush sooner if:
- The bristles are frayed or worn out, as they no longer clean effectively
- You have been sick, to avoid re-infection and bacterial buildup
- You apply heavy brushing pressure, which can wear bristles faster (in this case, every 2-3 months is advised)
To maintain hygiene between replacements, rinse your toothbrush thoroughly with hot water after each use, store it upright to air dry, and consider sanitizing it weekly by soaking in antimicrobial mouthwash or denture cleaner
. In summary, changing your toothbrush every 3-4 months, or sooner if bristles are worn or after illness, helps maintain effective cleaning and oral health.
